Lost in Space along with Land of the Giants and The Time Tunnel was one of the great American TV series from the 1960's. And it has aged very well. Concerning the Robinson family, lost in space, with an unwilling passenger, Dr Zachery Smith, it provides family entertainment with action, excitement, thrills, spills, romance and ridiculous inter-galactic monsters. It starts off in black and white, and quite serious, then turns more humorous as it breaks into colour in Series 2. Yes it can be downright silly at times and Dr Smith definitely was a bit of a Broadway thespian but it's undemanding fun. My favourite episode was one of the early b&w ones with Warren Oates playing a space cowboy and least favourite a later one in Series 3 where vegetables can feel pain. The whole family were great - big tough reliable Dad, caring Mom, brave little Will, the two sisters, and snappy Major West. Get the box set and you have everything.